Battery monitoring system
First Claim
Patent Images
1. A battery monitoring system (BMS) for use in determining an amount of current drawn from a battery to power a load within a vehicle, the BMS comprising:
- a terminal having a connection element and an arm, the connection element being configured to be coupled to a post of the battery, the arm having a first arm side opposite a second arm side;
a shunt having a first shunt end and a second shunt end, the first shunt end being configured to be welded to a cable connected to the load and the second shunt end having a first shunt side and a second shunt side where the first shunt side is welded to the second arm side with a weld, wherein at least a non-welded portion of the second arm side is not covered with the weld, the shunt having a measurement portion proximate the second shunt end;
a housing comprised of a non-conducting material, the housing being shaped such that the non-conducting material covers at least part of the first arm side and at least part of the second shunt side, and wherein the housing is further shaped such that an isolating portion of the non-conducting material fills a gap between the second arm side and the first shunt side; and
a current monitoring device within the housing, the current monitoring device being configured to determine the amount of current drawn from the battery as a function of a voltage drop across the measurement portion of the shunt.
9 Assignments
0 Petitions
Accused Products
Abstract
A battery monitoring system (BMS) configured for use in measuring operating conditions of a battery or other source of electric current. The BMS may include a housing configured to include a dampening element between a shunt and connection arm in order to limit the likelihood of vibrations and other forces acting on the BMS shorting or otherwise disrupting electrical connections used to measure current through the shunt.
118 Citations
19 Claims
-
1. A battery monitoring system (BMS) for use in determining an amount of current drawn from a battery to power a load within a vehicle, the BMS comprising:
-
a terminal having a connection element and an arm, the connection element being configured to be coupled to a post of the battery, the arm having a first arm side opposite a second arm side; a shunt having a first shunt end and a second shunt end, the first shunt end being configured to be welded to a cable connected to the load and the second shunt end having a first shunt side and a second shunt side where the first shunt side is welded to the second arm side with a weld, wherein at least a non-welded portion of the second arm side is not covered with the weld, the shunt having a measurement portion proximate the second shunt end; a housing comprised of a non-conducting material, the housing being shaped such that the non-conducting material covers at least part of the first arm side and at least part of the second shunt side, and wherein the housing is further shaped such that an isolating portion of the non-conducting material fills a gap between the second arm side and the first shunt side; and a current monitoring device within the housing, the current monitoring device being configured to determine the amount of current drawn from the battery as a function of a voltage drop across the measurement portion of the shunt. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
-
-
14. A battery monitoring system (BMS) comprising:
-
a terminal having a connection element and an arm, the connection element being coupled to a battery and the arm extending away from the connection element; a shunt having a first end and a second end, the first end being connected to a load, the second end being attached to the arm such that a gap is formed therebetween, the shunt being composed of a first material and a second material, the first material being disposed on opposite first and second sides of the second material, the arm being attached to only the first material on the second side such that the gap is formed between the arm the and the second material; a housing molded to the arm and the shunt, the housing being shaped to fill the gap between the arm and the second material of the shunt with a non-conducting material; and a current monitoring device configured to determine current flow between the battery and load as a function of a voltage drop across the second material. - View Dependent Claims (15, 16, 17, 18, 19)
-
Specification